There is one month left until Spark Summit 2015, which -will be held in San Francisco on June 15th to 17th. -The Summit will contain presentations from over 50 organizations using Spark, focused on use cases and ongoing development.
- +Abstract submissions are now open for the first ever Spark Summit Europe. The event will take place on October 27th to 29th in Amsterdam. Submissions are welcome across a variety of Spark related topics, including use cases and ongoing development.
Announcing Spark Summit Europe
-One month to Spark Summit 2015 in San Francisco
+Abstract submissions are now open for the first ever Spark Summit Europe. The event will take place on October 27th to 29th in Amsterdam. Submissions are welcome across a variety of Spark related topics, including use cases and ongoing development.
+There is one month left until Spark Summit 2015, which +will be held in San Francisco on June 15th to 17th. +The Summit will contain presentations from over 50 organizations using Spark, focused on use cases and ongoing development.
+Spark Summit East 2015 Videos Posted
The videos and slides for Spark Summit East 2015 are now all available online. Watch them to get the latest news from the Spark community as well as use cases and applications built on top.
+The videos and slides for Spark Summit East 2015 are now all available online. Watch them to get the latest news from the Spark community as well as use cases and applications built on top.
Spark 1.2.2 and 1.3.1 released
We are happy to announce the availability of Spark 1.2.2 and Spark 1.3.1! These are both maintenance releases that collectively feature the work of more than 90 developers.
+We are happy to announce the availability of Spark 1.2.2 and Spark 1.3.1! These are both maintenance releases that collectively feature the work of more than 90 developers.
We are happy to announce the availability of Spark 0.9.2! Apache Spark 0.9.2 is a maintenance release with bug fixes. We recommend all 0.9.x users to upgrade to this stable release. -Contributions to this release came from 28 developers.
+Contributions to this release came from 28 developers.We are happy to announce the availability of Spark 0.9.1! Apache Spark 0.9.1 is a maintenance release with bug fixes, performance improvements, better stability with YARN and improved parity of the Scala and Python API. We recommend all 0.9.0 users to upgrade to this stable release. -Contributions to this release came from 37 developers.
+Contributions to this release came from 37 developers.We have released the first two screencasts in a series of short hands-on video training courses we will be publishing to help new users get up and running with Spark in minutes.
-The first Spark screencast is called First Steps With Spark and walks you through downloading and building Spark, as well as using the Spark shell, all in less than 10 minutes!
- -The second screencast is a 2 minute overview of the Spark documentation.
- -We hope you find these screencasts useful.
In other news, there will be a full day of tutorials on Spark and Shark at the O’Reilly Strata conference in February. They include a three-hour introduction to Spark, Shark and BDAS Tuesday morning, and a three-hour hands-on exercise session.
+In other news, there will be a full day of tutorials on Spark and Shark at the O’Reilly Strata conference in February. They include a three-hour introduction to Spark, Shark and BDAS Tuesday morning, and a three-hour hands-on exercise session.
We are happy to announce the availability of Spark 0.9.1! Apache Spark 0.9.1 is a maintenance release with bug fixes, performance improvements, better stability with YARN and improved parity of the Scala and Python API. We recommend all 0.9.0 users to upgrade to this stable release. -Contributions to this release came from 37 developers.
+Contributions to this release came from 37 developers.Visit the release notes to read about the new features, or download the release today.
diff --git a/site/news/spark-0-9-2-released.html b/site/news/spark-0-9-2-released.html index 7c4ee38a8..70104b457 100644 --- a/site/news/spark-0-9-2-released.html +++ b/site/news/spark-0-9-2-released.html @@ -188,7 +188,7 @@We are happy to announce the availability of Spark 0.9.2! Apache Spark 0.9.2 is a maintenance release with bug fixes. We recommend all 0.9.x users to upgrade to this stable release. -Contributions to this release came from 28 developers.
+Contributions to this release came from 28 developers.Visit the release notes to read about the new features, or download the release today.
diff --git a/site/news/spark-1-1-0-released.html b/site/news/spark-1-1-0-released.html index 55bcdf00e..42ae590bc 100644 --- a/site/news/spark-1-1-0-released.html +++ b/site/news/spark-1-1-0-released.html @@ -188,7 +188,7 @@We are happy to announce the availability of Spark 1.1.0! Spark 1.1.0 is the second release on the API-compatible 1.X line. It is Spark’s largest release ever, with contributions from 171 developers!
-This release brings operational and performance improvements in Spark core including a new implementation of the Spark shuffle designed for very large scale workloads. Spark 1.1 adds significant extensions to the newest Spark modules, MLlib and Spark SQL. Spark SQL introduces a JDBC server, byte code generation for fast expression evaluation, a public types API, JSON support, and other features and optimizations. MLlib introduces a new statistics libary along with several new algorithms and optimizations. Spark 1.1 also builds out Spark’s Python support and adds new components to the Spark Streaming module.
+This release brings operational and performance improvements in Spark core including a new implementation of the Spark shuffle designed for very large scale workloads. Spark 1.1 adds significant extensions to the newest Spark modules, MLlib and Spark SQL. Spark SQL introduces a JDBC server, byte code generation for fast expression evaluation, a public types API, JSON support, and other features and optimizations. MLlib introduces a new statistics libary along with several new algorithms and optimizations. Spark 1.1 also builds out Spark’s Python support and adds new components to the Spark Streaming module.
Visit the release notes to read about the new features, or download the release today.
diff --git a/site/news/spark-1-2-2-released.html b/site/news/spark-1-2-2-released.html index f03b5073b..28ca3b148 100644 --- a/site/news/spark-1-2-2-released.html +++ b/site/news/spark-1-2-2-released.html @@ -186,7 +186,7 @@Spark 1.2.2 and 1.3.1 released
-We are happy to announce the availability of Spark 1.2.2 and Spark 1.3.1! These are both maintenance releases that collectively feature the work of more than 90 developers.
+We are happy to announce the availability of Spark 1.2.2 and Spark 1.3.1! These are both maintenance releases that collectively feature the work of more than 90 developers.
To download either release, visit the downloads page.
diff --git a/site/news/spark-and-shark-in-the-news.html b/site/news/spark-and-shark-in-the-news.html index 7c964f74a..3dac0cb74 100644 --- a/site/news/spark-and-shark-in-the-news.html +++ b/site/news/spark-and-shark-in-the-news.html @@ -196,7 +196,7 @@In other news, there will be a full day of tutorials on Spark and Shark at the O’Reilly Strata conference in February. They include a three-hour introduction to Spark, Shark and BDAS Tuesday morning, and a three-hour hands-on exercise session.
+In other news, there will be a full day of tutorials on Spark and Shark at the O’Reilly Strata conference in February. They include a three-hour introduction to Spark, Shark and BDAS Tuesday morning, and a three-hour hands-on exercise session.
diff --git a/site/news/spark-summit-east-2015-videos-posted.html b/site/news/spark-summit-east-2015-videos-posted.html index e0cd0039c..fed7c1227 100644 --- a/site/news/spark-summit-east-2015-videos-posted.html +++ b/site/news/spark-summit-east-2015-videos-posted.html @@ -186,7 +186,7 @@
Spark Summit East 2015 Videos Posted
-The videos and slides for Spark Summit East 2015 are now all available online. Watch them to get the latest news from the Spark community as well as use cases and applications built on top.
+The videos and slides for Spark Summit East 2015 are now all available online. Watch them to get the latest news from the Spark community as well as use cases and applications built on top.
If you like what you see, consider joining us at the 2015 Spark Summit in San Francisco.
diff --git a/site/releases/spark-release-0-8-0.html b/site/releases/spark-release-0-8-0.html index 4e0a4f986..5a5dbd516 100644 --- a/site/releases/spark-release-0-8-0.html +++ b/site/releases/spark-release-0-8-0.html @@ -210,13 +210,13 @@Spark’s internal job scheduler has been refactored and extended to include more sophisticated scheduling policies. In particular, a fair scheduler implementation now allows multiple users to share an instance of Spark, which helps users running shorter jobs to achieve good performance, even when longer-running jobs are running in parallel. Support for topology-aware scheduling has been extended, including the ability to take into account rack locality and support for multiple executors on a single machine.
Easier Deployment and Linking
-User programs can now link to Spark no matter which Hadoop version they need, without having to publish a version of spark-core
specifically for that Hadoop version. An explanation of how to link against different Hadoop versions is provided here.
User programs can now link to Spark no matter which Hadoop version they need, without having to publish a version of spark-core
specifically for that Hadoop version. An explanation of how to link against different Hadoop versions is provided here.
Expanded EC2 Capabilities
Spark’s EC2 scripts now support launching in any availability zone. Support has also been added for EC2 instance types which use the newer “HVM” architecture. This includes the cluster compute (cc1/cc2) family of instance types. We’ve also added support for running newer versions of HDFS alongside Spark. Finally, we’ve added the ability to launch clusters with maintenance releases of Spark in addition to launching the newest release.
Improved Documentation
-This release adds documentation about cluster hardware provisioning and inter-operation with common Hadoop distributions. Docs are also included to cover the MLlib machine learning functions and new cluster monitoring features. Existing documentation has been updated to reflect changes in building and deploying Spark.
+This release adds documentation about cluster hardware provisioning and inter-operation with common Hadoop distributions. Docs are also included to cover the MLlib machine learning functions and new cluster monitoring features. Existing documentation has been updated to reflect changes in building and deploying Spark.
Other Improvements
-
diff --git a/site/releases/spark-release-0-9-1.html b/site/releases/spark-release-0-9-1.html
index fbc1d66f3..89a92d306 100644
--- a/site/releases/spark-release-0-9-1.html
+++ b/site/releases/spark-release-0-9-1.html
@@ -201,9 +201,9 @@
- Fixed hash collision bug in external spilling [SPARK-1113]
- Fixed conflict with Spark’s log4j for users relying on other logging backends [SPARK-1190]
- Fixed Graphx missing from Spark assembly jar in maven builds -
- Fixed silent failures due to map output status exceeding Akka frame size [SPARK-1244] -
- Removed Spark’s unnecessary direct dependency on ASM [SPARK-782] -
- Removed metrics-ganglia from default build due to LGPL license conflict [SPARK-1167] +
- Fixed silent failures due to map output status exceeding Akka frame size [SPARK-1244] +
- Removed Spark’s unnecessary direct dependency on ASM [SPARK-782] +
- Removed metrics-ganglia from default build due to LGPL license conflict [SPARK-1167]
- Fixed bug in distribution tarball not containing spark assembly jar [SPARK-1184]
- Fixed bug causing infinite NullPointerException failures due to a null in map output locations [SPARK-1124]
- Fixed bugs in post-job cleanup of scheduler’s data structures @@ -219,7 +219,7 @@
- Fixed bug making Spark application stall when YARN registration fails [SPARK-1032]
- Race condition in getting HDFS delegation tokens in yarn-client mode [SPARK-1203]
- Fixed bug in yarn-client mode not exiting properly [SPARK-1049] -
- Fixed regression bug in ADD_JAR environment variable not correctly adding custom jars [SPARK-1089] +
- Fixed regression bug in ADD_JAR environment variable not correctly adding custom jars [SPARK-1089]
Improvements to other deployment scenarios
@@ -230,19 +230,19 @@Optimizations to MLLib
-
-
- Optimized memory usage of ALS [MLLIB-25] +
- Optimized memory usage of ALS [MLLIB-25]
- Optimized computation of YtY for implicit ALS [SPARK-1237]
- Support for negative implicit input in ALS [MLLIB-22]
- Setting of a random seed in ALS [SPARK-1238] -
- Faster construction of features with intercept [SPARK-1260] +
- Faster construction of features with intercept [SPARK-1260]
- Check for intercept and weight in GLM’s addIntercept [SPARK-1327]
Bug fixes and better API parity for PySpark
- Fixed bug in Python de-pickling [SPARK-1135] -
- Fixed bug in serialization of strings longer than 64K [SPARK-1043] -
- Fixed bug that made jobs hang when base file is not available [SPARK-1025] +
- Fixed bug in serialization of strings longer than 64K [SPARK-1043] +
- Fixed bug that made jobs hang when base file is not available [SPARK-1025]
- Added Missing RDD operations to PySpark - top, zip, foldByKey, repartition, coalesce, getStorageLevel, setName and toDebugString
Spark SQL adds a number of new features and performance improvements in this release. A JDBC/ODBC server allows users to connect to SparkSQL from many different applications and provides shared access to cached tables. A new module provides support for loading JSON data directly into Spark’s SchemaRDD format, including automatic schema inference. Spark SQL introduces dynamic bytecode generation in this release, a technique which significantly speeds up execution for queries that perform complex expression evaluation. This release also adds support for registering Python, Scala, and Java lambda functions as UDFs, which can then be called directly in SQL. Spark 1.1 adds a public types API to allow users to create SchemaRDD’s from custom data sources. Finally, many optimizations have been added to the native Parquet support as well as throughout the engine.
MLlib
-MLlib adds several new algorithms and optimizations in this release. 1.1 introduces a new library of statistical packages which provides exploratory analytic functions. These include stratified sampling, correlations, chi-squared tests and support for creating random datasets. This release adds utilities for feature extraction (Word2Vec and TF-IDF) and feature transformation (normalization and standard scaling). Also new are support for nonnegative matrix factorization and SVD via Lanczos. The decision tree algorithm has been added in Python and Java. A tree aggregation primitive has been added to help optimize many existing algorithms. Performance improves across the board in MLlib 1.1, with improvements of around 2-3X for many algorithms and up to 5X for large scale decision tree problems.
+MLlib adds several new algorithms and optimizations in this release. 1.1 introduces a new library of statistical packages which provides exploratory analytic functions. These include stratified sampling, correlations, chi-squared tests and support for creating random datasets. This release adds utilities for feature extraction (Word2Vec and TF-IDF) and feature transformation (normalization and standard scaling). Also new are support for nonnegative matrix factorization and SVD via Lanczos. The decision tree algorithm has been added in Python and Java. A tree aggregation primitive has been added to help optimize many existing algorithms. Performance improves across the board in MLlib 1.1, with improvements of around 2-3X for many algorithms and up to 5X for large scale decision tree problems.
GraphX and Spark Streaming
Spark streaming adds a new data source Amazon Kinesis. For the Apache Flume, a new mode is supported which pulls data from Flume, simplifying deployment and providing high availability. The first of a set of streaming machine learning algorithms is introduced with streaming linear regression. Finally, rate limiting has been added for streaming inputs. GraphX adds custom storage levels for vertices and edges along with improved numerical precision across the board. Finally, GraphX adds a new label propagation algorithm.
@@ -215,7 +215,7 @@- The default value of
spark.io.compression.codec
is nowsnappy
for improved memory usage. Old behavior can be restored by switching tolzf
.
- - The default value of
spark.broadcast.factory
is noworg.apache.spark.broadcast.TorrentBroadcastFactory
for improved efficiency of broadcasts. Old behavior can be restored by switching toorg.apache.spark.broadcast.HttpBroadcastFactory
.
+ - The default value of
spark.broadcast.factory
is noworg.apache.spark.broadcast.TorrentBroadcastFactory
for improved efficiency of broadcasts. Old behavior can be restored by switching toorg.apache.spark.broadcast.HttpBroadcastFactory
. - PySpark now performs external spilling during aggregations. Old behavior can be restored by setting
spark.shuffle.spill
tofalse
. - PySpark uses a new heuristic for determining the parallelism of shuffle operations. Old behavior can be restored by setting
spark.default.parallelism
to the number of cores in the cluster.
In 1.2 Spark core upgrades two major subsystems to improve the performance and stability of very large scale shuffles. The first is Spark’s communication manager used during bulk transfers, which upgrades to a netty-based implementation. The second is Spark’s shuffle mechanism, which upgrades to the “sort based” shuffle initially released in Spark 1.1. These both improve the performance and stability of very large scale shuffles. Spark also adds an elastic scaling mechanism designed to improve cluster utilization during long running ETL-style jobs. This is currently supported on YARN and will make its way to other cluster managers in future versions. Finally, Spark 1.2 adds support for Scala 2.11. For instructions on building for Scala 2.11 see the build documentation.
Spark Streaming
-This release includes two major feature additions to Spark’s streaming library, a Python API and a write ahead log for full driver H/A. The Python API covers almost all the DStream transformations and output operations. Input sources based on text files and text over sockets are currently supported. Support for Kafka and Flume input streams in Python will be added in the next release. Second, Spark streaming now features H/A driver support through a write ahead log (WAL). In Spark 1.1 and earlier, some buffered (received but not yet processed) data can be lost during driver restarts. To prevent this Spark 1.2 adds an optional WAL, which buffers received data into a fault-tolerant file system (e.g. HDFS). See the streaming programming guide for more details.
+This release includes two major feature additions to Spark’s streaming library, a Python API and a write ahead log for full driver H/A. The Python API covers almost all the DStream transformations and output operations. Input sources based on text files and text over sockets are currently supported. Support for Kafka and Flume input streams in Python will be added in the next release. Second, Spark streaming now features H/A driver support through a write ahead log (WAL). In Spark 1.1 and earlier, some buffered (received but not yet processed) data can be lost during driver restarts. To prevent this Spark 1.2 adds an optional WAL, which buffers received data into a fault-tolerant file system (e.g. HDFS). See the streaming programming guide for more details.
MLLib
Spark 1.2 previews a new set of machine learning API’s in a package called spark.ml that supports learning pipelines, where multiple algorithms are run in sequence with varying parameters. This type of pipeline is common in practical machine learning deployments. The new ML package uses Spark’s SchemaRDD to represent ML datasets, providing direct interoperability with Spark SQL. In addition to the new API, Spark 1.2 extends decision trees with two tree ensemble methods: random forests and gradient-boosted trees, among the most successful tree-based models for classification and regression. Finally, MLlib’s Python implementation receives a major update in 1.2 to simplify the process of adding Python APIs, along with better Python API coverage.
diff --git a/site/releases/spark-release-1-3-0.html b/site/releases/spark-release-1-3-0.html index 45180a7dc..ecfe27bcb 100644 --- a/site/releases/spark-release-1-3-0.html +++ b/site/releases/spark-release-1-3-0.html @@ -191,7 +191,7 @@To download Spark 1.3 visit the downloads page.
Spark Core
-Spark 1.3 sees a handful of usability improvements in the core engine. The core API now supports multi level aggregation trees to help speed up expensive reduce operations. Improved error reporting has been added for certain gotcha operations. Spark’s Jetty dependency is now shaded to help avoid conflicts with user programs. Spark now supports SSL encryption for some communication endpoints. Finaly, realtime GC metrics and record counts have been added to the UI.
+Spark 1.3 sees a handful of usability improvements in the core engine. The core API now supports multi level aggregation trees to help speed up expensive reduce operations. Improved error reporting has been added for certain gotcha operations. Spark’s Jetty dependency is now shaded to help avoid conflicts with user programs. Spark now supports SSL encryption for some communication endpoints. Finaly, realtime GC metrics and record counts have been added to the UI.
DataFrame API
Spark 1.3 adds a new DataFrames API that provides powerful and convenient operators when working with structured datasets. The DataFrame is an evolution of the base RDD API that includes named fields along with schema information. It’s easy to construct a DataFrame from sources such as Hive tables, JSON data, a JDBC database, or any implementation of Spark’s new data source API. Data frames will become a common interchange format between Spark components and when importing and exporting data to other systems. Data frames are supported in Python, Scala, and Java.
@@ -203,7 +203,7 @@In this release Spark MLlib introduces several new algorithms: latent Dirichlet allocation (LDA) for topic modeling, multinomial logistic regression for multiclass classification, Gaussian mixture model (GMM) and power iteration clustering for clustering, FP-growth for frequent pattern mining, and block matrix abstraction for distributed linear algebra. Initial support has been added for model import/export in exchangeable format, which will be expanded in future versions to cover more model types in Java/Python/Scala. The implementations of k-means and ALS receive updates that lead to significant performance gain. PySpark now supports the ML pipeline API added in Spark 1.2, and gradient boosted trees and Gaussian mixture model. Finally, the ML pipeline API has been ported to support the new DataFrames abstraction.
Spark Streaming
-Spark 1.3 introduces a new direct Kafka API (docs) which enables exactly-once delivery without the use of write ahead logs. It also adds a Python Kafka API along with infrastructure for additional Python API’s in future releases. An online version of logistic regression and the ability to read binary records have also been added. For stateful operations, support has been added for loading of an initial state RDD. Finally, the streaming programming guide has been updated to include information about SQL and DataFrame operations within streaming applications, and important clarifications to the fault-tolerance semantics.
+Spark 1.3 introduces a new direct Kafka API (docs) which enables exactly-once delivery without the use of write ahead logs. It also adds a Python Kafka API along with infrastructure for additional Python API’s in future releases. An online version of logistic regression and the ability to read binary records have also been added. For stateful operations, support has been added for loading of an initial state RDD. Finally, the streaming programming guide has been updated to include information about SQL and DataFrame operations within streaming applications, and important clarifications to the fault-tolerance semantics.
GraphX
GraphX adds a handful of utility functions in this release, including conversion into a canonical edge graph.
@@ -219,7 +219,7 @@- SPARK-6194: A memory leak in PySPark’s
collect()
. - SPARK-6222: An issue with failure recovery in Spark Streaming. -
- SPARK-6315: Spark SQL can’t read parquet data generated with Spark 1.1. +
- SPARK-6315: Spark SQL can’t read parquet data generated with Spark 1.1.
- SPARK-6247: Errors analyzing certain join types in Spark SQL.
Spark SQL
- Unable to use reserved words in DDL (SPARK-6250) -
- Parquet no longer caches metadata (SPARK-6575) +
- Parquet no longer caches metadata (SPARK-6575)
- Bug when joining two Parquet tables (SPARK-6851) -
- Unable to read parquet data generated by Spark 1.1.1 (SPARK-6315) -
- Parquet data source may use wrong Hadoop FileSystem (SPARK-6330) +
- Unable to read parquet data generated by Spark 1.1.1 (SPARK-6315) +
- Parquet data source may use wrong Hadoop FileSystem (SPARK-6330)
Spark Streaming
diff --git a/site/releases/spark-release-1-4-0.html b/site/releases/spark-release-1-4-0.html index 434105b2c..64ef70f10 100644 --- a/site/releases/spark-release-1-4-0.html +++ b/site/releases/spark-release-1-4-0.html @@ -250,7 +250,7 @@ Python coverage. MLlib also adds several new algorithms.Spark Streaming
-Spark streaming adds visual instrumentation graphs and significantly improved debugging information in the UI. It also enhances support for both Kafka and Kinesis.
+Spark streaming adds visual instrumentation graphs and significantly improved debugging information in the UI. It also enhances support for both Kafka and Kinesis.
- SPARK-7602: Visualization and monitoring in the streaming UI including batch drill down (SPARK-6796, SPARK-6862) @@ -276,7 +276,7 @@ Python coverage. MLlib also adds several new algorithms.
- APIs: RDD, DataFrame and SQL -
- Backend Execution: DataFrame and SQL -
- Integrations: Data Sources, Hive, Hadoop, Mesos and Cluster Management -
- R Language -
- Machine Learning and Advanced Analytics -
- Spark Streaming -
- Deprecations, Removals, Configs, and Behavior Changes
-
-
- Spark Core -
- Spark SQL & DataFrames -
- Spark Streaming -
- MLlib +
- APIs: RDD, DataFrame and SQL +
- Backend Execution: DataFrame and SQL +
- Integrations: Data Sources, Hive, Hadoop, Mesos and Cluster Management +
- R Language +
- Machine Learning and Advanced Analytics +
- Spark Streaming +
- Deprecations, Removals, Configs, and Behavior Changes -
- Known Issues
-
-
- SQL/DataFrame -
- Streaming +
- Known Issues -
- Credits +
- Credits
APIs: RDD, DataFrame and SQL
diff --git a/site/releases/spark-release-1-6-0.html b/site/releases/spark-release-1-6-0.html index ac240fc5b..6dcac5897 100644 --- a/site/releases/spark-release-1-6-0.html +++ b/site/releases/spark-release-1-6-0.html @@ -191,13 +191,13 @@You can consult JIRA for the detailed changes. We have curated a list of high level changes here:
-
-
- Spark Core/SQL -
- Spark Streaming -
- MLlib -
- Deprecations -
- Changes of behavior -
- Known issues -
- Credits +
- Spark Core/SQL +
- Spark Streaming +
- MLlib +
- Deprecations +
- Changes of behavior +
- Known issues +
- Credits
Spark Core/SQL
@@ -220,7 +220,7 @@- SPARK-10000 Unified Memory Management - Shared memory for execution and caching instead of exclusive division of the regions.
- SPARK-11787 Parquet Performance - Improve Parquet scan performance when using flat schemas. -
- SPARK-9241 Improved query planner for queries having distinct aggregations - Query plans of distinct aggregations are more robust when distinct columns have high cardinality. +
- SPARK-9241 Improved query planner for queries having distinct aggregations - Query plans of distinct aggregations are more robust when distinct columns have high cardinality.
- SPARK-9858 Adaptive query execution - Initial support for automatically selecting the number of reducers for joins and aggregations.
- SPARK-10978 Avoiding double filters in Data Source API - When implementing a data source with filter pushdown, developers can now tell Spark SQL to avoid double evaluating a pushed-down filter.
- SPARK-11111 Fast null-safe joins - Joins using null-safe equality (
<=>
) will now execute using SortMergeJoin instead of computing a cartisian product.
@@ -233,7 +233,7 @@
- API Updates +
- API Updates
- SPARK-2629 New improved state management -
mapWithState
- a DStream transformation for stateful stream processing, supercedesupdateStateByKey
in functionality and performance. - SPARK-11198 Kinesis record deaggregation - Kinesis streams have been upgraded to use KCL 1.4.0 and supports transparent deaggregation of KPL-aggregated records. @@ -244,7 +244,7 @@
- UI Improvements
- Made failures visible in the streaming tab, in the timelines, batch list, and batch details page. -
- Made output operations visible in the streaming tab as progress bars. +
- Made output operations visible in the streaming tab as progress bars.
To download Apache Spark 2.0.0, visit the downloads page. You can consult JIRA for the detailed changes. We have curated a list of high level changes here, grouped by major modules.
-
-
- API Stability -
- Core and Spark SQL
-
-
- Programming APIs -
- SQL -
- New Features -
- Performance and Runtime +
- API Stability +
- Core and Spark SQL -
- MLlib
-
-
- New features -
- Speed/scaling +
- MLlib -
- SparkR -
- Streaming -
- Dependency, Packaging, and Operations -
- Removals, Behavior Changes and Deprecations
-
-
- Removals -
- Behavior Changes -
- Deprecations +
- SparkR +
- Streaming +
- Dependency, Packaging, and Operations +
- Removals, Behavior Changes and Deprecations -
- Known Issues -
- Credits +
- Known Issues +
- Credits
API Stability
-- cgit v1.2.3
- SPARK-2629 New improved state management -
Spark Streaming
-
-
Test Partners
-Thanks to The following organizations, who helped benchmark or integration test release candidates:
Intel, Palantir, Cloudera, Mesosphere, Huawei, Shopify, Netflix, Yahoo, UC Berkeley and Databricks.
Thanks to The following organizations, who helped benchmark or integration test release candidates:
Intel, Palantir, Cloudera, Mesosphere, Huawei, Shopify, Netflix, Yahoo, UC Berkeley and Databricks.
Contributors
-
diff --git a/site/releases/spark-release-1-5-0.html b/site/releases/spark-release-1-5-0.html
index 42ea443f2..397348b96 100644
--- a/site/releases/spark-release-1-5-0.html
+++ b/site/releases/spark-release-1-5-0.html
@@ -191,25 +191,25 @@
You can consult JIRA for the detailed changes. We have curated a list of high level changes here:
-
-